Each metacharacter described in Syntax terminates a word unless the metacharacter is quoted.
Characters can be quoted by enclosing them in a pair of single quotation
marks (') or double quotation marks (").. Quoting characters forces MDB to interpret each
character as itself without any special significance. A single quotation mark cannot appear
inside single quotation marks. Inside double quotation marks, MDB recognizes the C programming
language character escape sequences.